Determination of the two-dimensional distributions of gold nanorods by multiwavelength analytical ultracentrifugation

Wawra S, Pflug L, Thajudeen T, Kryschi C, Stingl M, Peukert W (2018)


Publication Type: Journal article

Publication year: 2018

Journal

Book Volume: 9

Article Number: 4898

Journal Issue: 1

DOI: 10.1038/s41467-018-07366-9

Abstract

Properties of nanoparticles are influenced by various parameters like size, shape or composition. Comprehensive high throughput characterization techniques are urgently needed to improve synthesis, scale~up to production and make way for new~applications of multidimensional particulate systems. In this study, we present a method for measuring two-dimensional size distributions of plasmonic nanorods in a single experiment. Analytical ultracentrifuge equipped with a multiwavelength extinction detector is used to record the optical and sedimentation properties of gold nanorods simultaneously. A combination of sedimentation and extinction properties, both depending on diameter and length of the dispersed nanorods, is used to measure two-dimensional distributions of gold nanorod samples. The length, diameter, aspect ratio, volume, surface and cross-sectional distributions can be readily obtained from these results. As the technique can be extended to other non-spherical plasmonic particles and can be used for determining relative amounts of particles of different shapes it provides complete and quantitative insights into particulate systems.

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APA:

Wawra, S., Pflug, L., Thajudeen, T., Kryschi, C., Stingl, M., & Peukert, W. (2018). Determination of the two-dimensional distributions of gold nanorods by multiwavelength analytical ultracentrifugation. Nature Communications, 9(1). https://doi.org/10.1038/s41467-018-07366-9

MLA:

Wawra, Simon, et al. "Determination of the two-dimensional distributions of gold nanorods by multiwavelength analytical ultracentrifugation." Nature Communications 9.1 (2018).

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